(DIHALOMETHYL)PALLADIUM(II) COMPLEXES FROM PALLADIUM(0) PRECURSORS OF DIBENZYLIDENE ACETONE - SYNTHESIS, STRUCTURAL CHEMISTRY AND REACTIVITY
(DIHALOMETHYL)PALLADIUM(II) COMPLEXES FROM PALLADIUM(0) PRECURSORS OF DIBENZYLIDENE ACETONE - SYNTHESIS, STRUCTURAL CHEMISTRY AND REACTIVITY
复制标题
DOI：
10.1016/0022-328x(93)83273-x
复制
发表时间：
1993-11-30
影响因子：
2.3
通讯作者：
SCHERER, W
中科院分区：
文献类型：
--
作者：
HERRMANN, WA;THIEL, WR;SCHERER, W
双(二亚苄基丙酮)钯(0)(1)与一个等价膦配体(P-P)或两个等价单膦配体(P)反应，分别得到了(P-P)Pd(Dba)(3a-c；dba=二亚苄基丙酮)和(P)(2)Pd(Dba)(3d，e)的配合物，并对其结构进行了表征(X-射线结构分析)。这些络合物很容易裂解氯仿或溴仿的碳卤键。从而以70-85%的产率获得了空气和水分稳定的氧化加成产物(P-P)Pd(CHX(2))X(4a-d；X=Cl，Br.)。通过对4a的单晶X射线衍射研究，确定了它们的特征。
Bis(dibenzylideneacetone)palladium(0) (1) reacts with one equivalent of a chelating phosphine ligand (P-P) or two equivalents of a monophosphine ligand (P) to give complexes of the type (P-P)Pd(dba) (3a-c; dba = dibenzylidene acetone) and (P)(2)Pd(dba) (3d,e) respectively, that have been characterized spectroscopically and structurally (X-ray structure analysis). These complexes readily cleave the carbon-halogen bond of chloroform or bromoform. The air- and moisture-stable oxidative addition products (P-P)Pd(CHX(2))X (4a-d; X = Cl, Br) are thus obtained in 70-85% yield. Their identity was established by a single-crystal X-ray diffraction study of 4a.